src/Pure/Isar/proof_context.ML
author wenzelm
Fri Sep 29 22:47:01 2006 +0200 (2006-09-29 ago)
changeset 20784 eece9aaaf352
parent 20631 010df683de04
child 21183 a76f457b6d86
permissions -rw-r--r--
Syntax.mode;
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(*  Title:      Pure/Isar/proof_context.ML
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    ID:         $Id$
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    Author:     Markus Wenzel, TU Muenchen
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The key concept of Isar proof contexts: elevates primitive local
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reasoning Gamma |- phi to a structured concept, with generic context
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elements.  See also structure Variable and Assumption.
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*)
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signature PROOF_CONTEXT =
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sig
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  val theory_of: Proof.context -> theory
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  val init: theory -> Proof.context
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  val full_name: Proof.context -> bstring -> string
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  val consts_of: Proof.context -> Consts.T
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  val set_syntax_mode: Syntax.mode -> Proof.context -> Proof.context
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  val restore_syntax_mode: Proof.context -> Proof.context -> Proof.context
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  val fact_index_of: Proof.context -> FactIndex.T
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  val transfer: theory -> Proof.context -> Proof.context
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  val theory: (theory -> theory) -> Proof.context -> Proof.context
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  val theory_result: (theory -> 'a * theory) -> Proof.context -> 'a * Proof.context
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  val pretty_term: Proof.context -> term -> Pretty.T
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  val pretty_typ: Proof.context -> typ -> Pretty.T
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  val pretty_sort: Proof.context -> sort -> Pretty.T
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  val pretty_classrel: Proof.context -> class list -> Pretty.T
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  val pretty_arity: Proof.context -> arity -> Pretty.T
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  val pp: Proof.context -> Pretty.pp
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  val pretty_thm_legacy: bool -> thm -> Pretty.T
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  val pretty_thm: Proof.context -> thm -> Pretty.T
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  val pretty_thms: Proof.context -> thm list -> Pretty.T
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  val pretty_fact: Proof.context -> string * thm list -> Pretty.T
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  val pretty_proof: Proof.context -> Proofterm.proof -> Pretty.T
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  val pretty_proof_of: Proof.context -> bool -> thm -> Pretty.T
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  val string_of_typ: Proof.context -> typ -> string
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  val string_of_term: Proof.context -> term -> string
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  val string_of_thm: Proof.context -> thm -> string
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  val read_typ: Proof.context -> string -> typ
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  val read_typ_syntax: Proof.context -> string -> typ
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  val read_typ_abbrev: Proof.context -> string -> typ
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  val cert_typ: Proof.context -> typ -> typ
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  val cert_typ_syntax: Proof.context -> typ -> typ
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  val cert_typ_abbrev: Proof.context -> typ -> typ
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  val get_skolem: Proof.context -> string -> string
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  val revert_skolem: Proof.context -> string -> string
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  val revert_skolems: Proof.context -> term -> term
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  val read_termTs: Proof.context -> (string -> bool) -> (indexname -> typ option)
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    -> (indexname -> sort option) -> string list -> (string * typ) list
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    -> term list * (indexname * typ) list
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  val read_termTs_schematic: Proof.context -> (string -> bool) -> (indexname -> typ option)
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    -> (indexname -> sort option) -> string list -> (string * typ) list
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    -> term list * (indexname * typ) list
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  val read_term_legacy: Proof.context -> string -> term
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  val read_term: Proof.context -> string -> term
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  val read_prop: Proof.context -> string -> term
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  val read_prop_schematic: Proof.context -> string -> term
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  val read_term_pats: typ -> Proof.context -> string list -> term list
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  val read_prop_pats: Proof.context -> string list -> term list
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  val cert_term: Proof.context -> term -> term
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  val cert_prop: Proof.context -> term -> term
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  val cert_term_pats: typ -> Proof.context -> term list -> term list
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  val cert_prop_pats: Proof.context -> term list -> term list
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  val infer_type: Proof.context -> string -> typ
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  val inferred_param: string -> Proof.context -> (string * typ) * Proof.context
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  val inferred_fixes: Proof.context -> (string * typ) list * Proof.context
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  val read_tyname: Proof.context -> string -> typ
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  val read_const: Proof.context -> string -> term
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  val goal_export: Proof.context -> Proof.context -> thm list -> thm list
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  val export: Proof.context -> Proof.context -> thm list -> thm list
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  val export_standard: Proof.context -> Proof.context -> thm list -> thm list
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  val standard: Proof.context -> thm list -> thm list
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  val add_binds: (indexname * string option) list -> Proof.context -> Proof.context
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  val add_binds_i: (indexname * term option) list -> Proof.context -> Proof.context
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  val auto_bind_goal: term list -> Proof.context -> Proof.context
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  val auto_bind_facts: term list -> Proof.context -> Proof.context
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  val match_bind: bool -> (string list * string) list -> Proof.context -> term list * Proof.context
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  val match_bind_i: bool -> (term list * term) list -> Proof.context -> term list * Proof.context
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  val read_propp: Proof.context * (string * string list) list list
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    -> Proof.context * (term * term list) list list
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  val cert_propp: Proof.context * (term * term list) list list
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    -> Proof.context * (term * term list) list list
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  val read_propp_schematic: Proof.context * (string * string list) list list
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    -> Proof.context * (term * term list) list list
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  val cert_propp_schematic: Proof.context * (term * term list) list list
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    -> Proof.context * (term * term list) list list
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  val bind_propp: Proof.context * (string * string list) list list
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    -> Proof.context * (term list list * (Proof.context -> Proof.context))
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  val bind_propp_i: Proof.context * (term * term list) list list
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    -> Proof.context * (term list list * (Proof.context -> Proof.context))
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  val bind_propp_schematic: Proof.context * (string * string list) list list
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    -> Proof.context * (term list list * (Proof.context -> Proof.context))
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  val bind_propp_schematic_i: Proof.context * (term * term list) list list
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    -> Proof.context * (term list list * (Proof.context -> Proof.context))
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  val fact_tac: thm list -> int -> tactic
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  val some_fact_tac: Proof.context -> int -> tactic
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  val get_thm: Proof.context -> thmref -> thm
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  val get_thm_closure: Proof.context -> thmref -> thm
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  val get_thms: Proof.context -> thmref -> thm list
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  val get_thms_closure: Proof.context -> thmref -> thm list
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  val valid_thms: Proof.context -> string * thm list -> bool
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  val lthms_containing: Proof.context -> FactIndex.spec -> (string * thm list) list
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  val no_base_names: Proof.context -> Proof.context
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  val qualified_names: Proof.context -> Proof.context
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  val sticky_prefix: string -> Proof.context -> Proof.context
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  val restore_naming: Proof.context -> Proof.context -> Proof.context
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  val hide_thms: bool -> string list -> Proof.context -> Proof.context
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  val put_thms: bool -> string * thm list option -> Proof.context -> Proof.context
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  val put_thms_internal: string * thm list option -> Proof.context -> Proof.context
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  val note_thmss:
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    ((bstring * attribute list) * (thmref * attribute list) list) list ->
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      Proof.context -> (bstring * thm list) list * Proof.context
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  val note_thmss_i:
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    ((bstring * attribute list) * (thm list * attribute list) list) list ->
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      Proof.context -> (bstring * thm list) list * Proof.context
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  val read_vars: (string * string option * mixfix) list -> Proof.context ->
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    (string * typ option * mixfix) list * Proof.context
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  val cert_vars: (string * typ option * mixfix) list -> Proof.context ->
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    (string * typ option * mixfix) list * Proof.context
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  val read_vars_legacy: (string * string option * mixfix) list -> Proof.context ->
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    (string * typ option * mixfix) list * Proof.context
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  val cert_vars_legacy: (string * typ option * mixfix) list -> Proof.context ->
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    (string * typ option * mixfix) list * Proof.context
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  val add_fixes: (string * string option * mixfix) list ->
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    Proof.context -> string list * Proof.context
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  val add_fixes_i: (string * typ option * mixfix) list ->
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    Proof.context -> string list * Proof.context
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  val add_fixes_legacy: (string * typ option * mixfix) list ->
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    Proof.context -> string list * Proof.context
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  val auto_fixes: Proof.context * (term list list * 'a) -> Proof.context * (term list list * 'a)
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  val bind_fixes: string list -> Proof.context -> (term -> term) * Proof.context
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  val add_assms: Assumption.export ->
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    ((string * attribute list) * (string * string list) list) list ->
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    Proof.context -> (bstring * thm list) list * Proof.context
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  val add_assms_i: Assumption.export ->
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    ((string * attribute list) * (term * term list) list) list ->
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    Proof.context -> (bstring * thm list) list * Proof.context
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  val add_cases: bool -> (string * RuleCases.T option) list -> Proof.context -> Proof.context
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  val apply_case: RuleCases.T -> Proof.context -> (string * term list) list * Proof.context
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  val get_case: Proof.context -> string -> string option list -> RuleCases.T
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  val expand_abbrevs: bool -> Proof.context -> Proof.context
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  val add_const_syntax: Syntax.mode -> (string * mixfix) list -> Proof.context -> Proof.context
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  val add_abbrevs: Syntax.mode -> ((bstring * mixfix) * term) list ->
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    Proof.context -> Proof.context
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  val verbose: bool ref
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  val setmp_verbose: ('a -> 'b) -> 'a -> 'b
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  val print_syntax: Proof.context -> unit
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  val print_binds: Proof.context -> unit
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  val print_lthms: Proof.context -> unit
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  val print_cases: Proof.context -> unit
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  val debug: bool ref
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  val prems_limit: int ref
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  val pretty_ctxt: Proof.context -> Pretty.T list
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  val pretty_context: Proof.context -> Pretty.T list
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end;
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structure ProofContext: PROOF_CONTEXT =
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struct
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val theory_of = Context.theory_of_proof;
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val tsig_of = Sign.tsig_of o theory_of;
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val init = Context.init_proof;
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(** Isar proof context information **)
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datatype ctxt =
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  Ctxt of
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   {naming: NameSpace.naming,                     (*local naming conventions*)
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    syntax: LocalSyntax.T,                        (*local syntax*)
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    consts: Consts.T * Consts.T,                  (*global/local consts*)
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    thms: thm list NameSpace.table * FactIndex.T, (*local thms*)
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    cases: (string * (RuleCases.T * bool)) list}; (*local contexts*)
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fun make_ctxt (naming, syntax, consts, thms, cases) =
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  Ctxt {naming = naming, syntax = syntax, consts = consts, thms = thms, cases = cases};
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val local_naming = NameSpace.default_naming |> NameSpace.add_path "local";
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structure ContextData = ProofDataFun
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(
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  val name = "Isar/context";
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  type T = ctxt;
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  fun init thy =
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    make_ctxt (local_naming, LocalSyntax.init thy,
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      (Sign.consts_of thy, Sign.consts_of thy),
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      (NameSpace.empty_table, FactIndex.empty), []);
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  fun print _ _ = ();
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);
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val _ = Context.add_setup ContextData.init;
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fun rep_context ctxt = ContextData.get ctxt |> (fn Ctxt args => args);
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fun map_context f =
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  ContextData.map (fn Ctxt {naming, syntax, consts, thms, cases} =>
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    make_ctxt (f (naming, syntax, consts, thms, cases)));
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fun map_naming f =
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  map_context (fn (naming, syntax, consts, thms, cases) =>
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    (f naming, syntax, consts, thms, cases));
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fun map_syntax f =
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  map_context (fn (naming, syntax, consts, thms, cases) =>
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    (naming, f syntax, consts, thms, cases));
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fun map_consts f =
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  map_context (fn (naming, syntax, consts, thms, cases) =>
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    (naming, syntax, f consts, thms, cases));
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fun map_thms f =
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  map_context (fn (naming, syntax, consts, thms, cases) =>
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    (naming, syntax, consts, f thms, cases));
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fun map_cases f =
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  map_context (fn (naming, syntax, consts, thms, cases) =>
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    (naming, syntax, consts, thms, f cases));
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val naming_of = #naming o rep_context;
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val full_name = NameSpace.full o naming_of;
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val syntax_of = #syntax o rep_context;
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val syn_of = LocalSyntax.syn_of o syntax_of;
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val set_syntax_mode = map_syntax o LocalSyntax.set_mode;
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val restore_syntax_mode = map_syntax o LocalSyntax.restore_mode o syntax_of;
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val consts_of = #2 o #consts o rep_context;
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val thms_of = #thms o rep_context;
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val fact_index_of = #2 o thms_of;
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val cases_of = #cases o rep_context;
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(* theory transfer *)
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fun transfer_syntax thy =
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  map_syntax (LocalSyntax.rebuild thy) #>
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  map_consts (fn consts as (global_consts, local_consts) =>
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    let val thy_consts = Sign.consts_of thy in
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      if Consts.eq_consts (thy_consts, global_consts) then consts
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      else (thy_consts, Consts.merge (thy_consts, local_consts))
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    end);
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fun transfer thy = Context.transfer_proof thy #> transfer_syntax thy;
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fun theory f ctxt = transfer (f (theory_of ctxt)) ctxt;
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fun theory_result f ctxt =
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  let val (res, thy') = f (theory_of ctxt)
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  in (res, ctxt |> transfer thy') end;
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(** pretty printing **)
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local
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fun rewrite_term thy rews t =
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  if can Term.type_of t then Pattern.rewrite_term thy rews [] t
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  else (warning "Printing ill-typed term -- cannot expand abbreviations"; t);
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fun pretty_term' abbrevs ctxt t =
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  let
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    val thy = theory_of ctxt;
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    val syntax = syntax_of ctxt;
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    val consts = consts_of ctxt;
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    val t' = t
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      |> K abbrevs ? rewrite_term thy (Consts.abbrevs_of consts (! print_mode @ [""]))
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      |> Sign.extern_term (Consts.extern_early consts) thy
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      |> LocalSyntax.extern_term syntax;
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  in
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    Sign.pretty_term' (Context.Proof ctxt) (LocalSyntax.syn_of syntax) (Consts.extern consts) t'
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  end;
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in
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val pretty_term = pretty_term' true;
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val pretty_term_no_abbrevs = pretty_term' false;
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end;
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fun pretty_typ ctxt T = Sign.pretty_typ (theory_of ctxt) T;
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fun pretty_sort ctxt S = Sign.pretty_sort (theory_of ctxt) S;
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fun pretty_classrel ctxt cs = Sign.pretty_classrel (theory_of ctxt) cs;
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fun pretty_arity ctxt ar = Sign.pretty_arity (theory_of ctxt) ar;
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fun pp ctxt = Pretty.pp (pretty_term ctxt, pretty_typ ctxt, pretty_sort ctxt,
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  pretty_classrel ctxt, pretty_arity ctxt);
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fun pretty_thm_legacy quote th =
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  let
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    val thy = Thm.theory_of_thm th;
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    val pp =
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      if Theory.eq_thy (thy, ProtoPure.thy) then Sign.pp thy
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      else pp (init thy);
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  in Display.pretty_thm_aux pp quote false [] th end;
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fun pretty_thm ctxt th =
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  let
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    val thy = theory_of ctxt;
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    val (pp, asms) =
wenzelm@20575
   303
      if Theory.eq_thy (thy, ProtoPure.thy) then (Sign.pp thy, [])
wenzelm@20575
   304
      else (pp ctxt, Assumption.assms_of ctxt);
wenzelm@20575
   305
  in Display.pretty_thm_aux pp false true asms th end;
wenzelm@14828
   306
wenzelm@14828
   307
fun pretty_thms ctxt [th] = pretty_thm ctxt th
wenzelm@14828
   308
  | pretty_thms ctxt ths = Pretty.blk (0, Pretty.fbreaks (map (pretty_thm ctxt) ths));
wenzelm@14828
   309
wenzelm@14828
   310
fun pretty_fact ctxt ("", ths) = pretty_thms ctxt ths
wenzelm@14828
   311
  | pretty_fact ctxt (a, [th]) =
wenzelm@14828
   312
      Pretty.block [Pretty.str (a ^ ":"), Pretty.brk 1, pretty_thm ctxt th]
wenzelm@14828
   313
  | pretty_fact ctxt (a, ths) =
wenzelm@14828
   314
      Pretty.block (Pretty.fbreaks (Pretty.str (a ^ ":") :: map (pretty_thm ctxt) ths));
wenzelm@14828
   315
wenzelm@17072
   316
fun pretty_proof ctxt prf =
wenzelm@19310
   317
  pretty_term_no_abbrevs (ctxt |> transfer_syntax (ProofSyntax.proof_syntax prf (theory_of ctxt)))
wenzelm@17072
   318
    (ProofSyntax.term_of_proof prf);
wenzelm@17072
   319
wenzelm@17072
   320
fun pretty_proof_of ctxt full th =
wenzelm@17072
   321
  pretty_proof ctxt (ProofSyntax.proof_of full th);
wenzelm@17072
   322
wenzelm@17860
   323
val string_of_typ = Pretty.string_of oo pretty_typ;
wenzelm@17860
   324
val string_of_term = Pretty.string_of oo pretty_term;
wenzelm@17860
   325
val string_of_thm = Pretty.string_of oo pretty_thm;
wenzelm@17860
   326
wenzelm@14828
   327
wenzelm@14828
   328
wenzelm@5819
   329
(** prepare types **)
wenzelm@5819
   330
wenzelm@9504
   331
local
wenzelm@9504
   332
wenzelm@9504
   333
fun read_typ_aux read ctxt s =
wenzelm@19897
   334
  read (syn_of ctxt) (Context.Proof ctxt) (Variable.def_sort ctxt) s;
wenzelm@5819
   335
wenzelm@10554
   336
fun cert_typ_aux cert ctxt raw_T =
wenzelm@18678
   337
  cert (theory_of ctxt) raw_T handle TYPE (msg, _, _) => error msg;
wenzelm@9504
   338
wenzelm@9504
   339
in
wenzelm@9504
   340
wenzelm@16348
   341
val read_typ        = read_typ_aux Sign.read_typ';
wenzelm@16348
   342
val read_typ_syntax = read_typ_aux Sign.read_typ_syntax';
wenzelm@16348
   343
val read_typ_abbrev = read_typ_aux Sign.read_typ_abbrev';
wenzelm@16348
   344
val cert_typ        = cert_typ_aux Sign.certify_typ;
wenzelm@16348
   345
val cert_typ_syntax = cert_typ_aux Sign.certify_typ_syntax;
wenzelm@16348
   346
val cert_typ_abbrev = cert_typ_aux Sign.certify_typ_abbrev;
wenzelm@9504
   347
wenzelm@9504
   348
end;
wenzelm@9504
   349
wenzelm@5819
   350
wenzelm@7679
   351
(* internalize Skolem constants *)
wenzelm@7679
   352
wenzelm@19897
   353
val lookup_skolem = AList.lookup (op =) o Variable.fixes_of;
wenzelm@18187
   354
fun get_skolem ctxt x = the_default x (lookup_skolem ctxt x);
wenzelm@7679
   355
wenzelm@18678
   356
fun no_skolem internal x =
wenzelm@20086
   357
  if can Name.dest_skolem x then
wenzelm@18678
   358
    error ("Illegal reference to internal Skolem constant: " ^ quote x)
wenzelm@20086
   359
  else if not internal andalso can Name.dest_internal x then
wenzelm@18678
   360
    error ("Illegal reference to internal variable: " ^ quote x)
wenzelm@7679
   361
  else x;
wenzelm@7679
   362
wenzelm@14720
   363
fun intern_skolem ctxt internal =
wenzelm@7679
   364
  let
wenzelm@7679
   365
    fun intern (t as Free (x, T)) =
wenzelm@14720
   366
          if internal x then t
wenzelm@14720
   367
          else
wenzelm@18678
   368
            (case lookup_skolem ctxt (no_skolem false x) of
skalberg@15531
   369
              SOME x' => Free (x', T)
skalberg@15531
   370
            | NONE => t)
wenzelm@7679
   371
      | intern (t $ u) = intern t $ intern u
wenzelm@7679
   372
      | intern (Abs (x, T, t)) = Abs (x, T, intern t)
wenzelm@7679
   373
      | intern a = a;
wenzelm@7679
   374
  in intern end;
wenzelm@7679
   375
wenzelm@7679
   376
wenzelm@20244
   377
(* revert Skolem constants -- approximation only! *)
wenzelm@18255
   378
wenzelm@20244
   379
fun revert_skolem ctxt =
wenzelm@9133
   380
  let
wenzelm@20244
   381
    val rev_fixes = map Library.swap (Variable.fixes_of ctxt);
wenzelm@20244
   382
    val revert = AList.lookup (op =) rev_fixes;
wenzelm@20244
   383
  in
wenzelm@20244
   384
    fn x =>
wenzelm@20244
   385
      (case revert x of
wenzelm@20244
   386
        SOME x' => x'
wenzelm@20244
   387
      | NONE => perhaps (try Name.dest_skolem) x)
wenzelm@20244
   388
   end;
wenzelm@20244
   389
wenzelm@20244
   390
fun revert_skolems ctxt =
wenzelm@20244
   391
  let
wenzelm@20244
   392
    val revert = revert_skolem ctxt;
wenzelm@20244
   393
    fun reverts (Free (x, T)) = Free (revert x, T)
wenzelm@20244
   394
      | reverts (t $ u) = reverts t $ reverts u
wenzelm@20244
   395
      | reverts (Abs (x, T, t)) = Abs (x, T, reverts t)
wenzelm@20244
   396
      | reverts a = a;
wenzelm@20244
   397
  in reverts end
wenzelm@9133
   398
wenzelm@8096
   399
wenzelm@18187
   400
wenzelm@5819
   401
(** prepare terms and propositions **)
wenzelm@5819
   402
wenzelm@5819
   403
(*
wenzelm@16501
   404
  (1) read / certify wrt. theory of context
wenzelm@5819
   405
  (2) intern Skolem constants
wenzelm@5819
   406
  (3) expand term bindings
wenzelm@5819
   407
*)
wenzelm@5819
   408
wenzelm@5819
   409
wenzelm@16501
   410
(* read wrt. theory *)     (*exception ERROR*)
wenzelm@5819
   411
wenzelm@18857
   412
fun read_def_termTs freeze pp syn ctxt (types, sorts, used) sTs =
wenzelm@18971
   413
  Sign.read_def_terms' pp (Sign.is_logtype (theory_of ctxt)) syn (consts_of ctxt)
wenzelm@18857
   414
    (Context.Proof ctxt) (types, sorts) used freeze sTs;
wenzelm@5874
   415
wenzelm@18857
   416
fun read_def_termT freeze pp syn ctxt defaults sT =
wenzelm@18857
   417
  apfst hd (read_def_termTs freeze pp syn ctxt defaults [sT]);
wenzelm@14828
   418
wenzelm@18672
   419
fun read_term_thy freeze pp syn thy defaults s =
wenzelm@18672
   420
  #1 (read_def_termT freeze pp syn thy defaults (s, TypeInfer.logicT));
wenzelm@5874
   421
wenzelm@18672
   422
fun read_prop_thy freeze pp syn thy defaults s =
wenzelm@18672
   423
  #1 (read_def_termT freeze pp syn thy defaults (s, propT));
wenzelm@12072
   424
wenzelm@18672
   425
fun read_terms_thy freeze pp syn thy defaults =
wenzelm@18672
   426
  #1 o read_def_termTs freeze pp syn thy defaults o map (rpair TypeInfer.logicT);
wenzelm@12072
   427
wenzelm@18672
   428
fun read_props_thy freeze pp syn thy defaults =
wenzelm@18672
   429
  #1 o read_def_termTs freeze pp syn thy defaults o map (rpair propT);
wenzelm@5819
   430
wenzelm@5819
   431
wenzelm@19001
   432
(* local abbreviations *)
wenzelm@5819
   433
wenzelm@19371
   434
fun certify_consts ctxt =
wenzelm@19001
   435
  Consts.certify (pp ctxt) (tsig_of ctxt) (consts_of ctxt);
wenzelm@19001
   436
wenzelm@19897
   437
fun reject_schematic (Var (xi, _)) =
wenzelm@19897
   438
      error ("Unbound schematic variable: " ^ Syntax.string_of_vname xi)
wenzelm@19897
   439
  | reject_schematic (Abs (_, _, t)) = reject_schematic t
wenzelm@19897
   440
  | reject_schematic (t $ u) = (reject_schematic t; reject_schematic u)
wenzelm@19897
   441
  | reject_schematic _ = ();
wenzelm@5819
   442
wenzelm@19897
   443
fun expand_binds ctxt schematic =
wenzelm@19897
   444
  Variable.expand_binds ctxt #> (if schematic then I else tap reject_schematic);
wenzelm@5819
   445
wenzelm@5819
   446
wenzelm@6550
   447
(* dummy patterns *)
wenzelm@6550
   448
wenzelm@18310
   449
val prepare_dummies =
wenzelm@18310
   450
  let val next = ref 1 in
wenzelm@18310
   451
    fn t =>
wenzelm@18310
   452
      let val (i, u) = Term.replace_dummy_patterns (! next, t)
wenzelm@18310
   453
      in next := i; u end
wenzelm@18310
   454
  end;
wenzelm@6762
   455
wenzelm@18678
   456
fun reject_dummies t = Term.no_dummy_patterns t
wenzelm@18678
   457
  handle TERM _ => error "Illegal dummy pattern(s) in term";
wenzelm@6550
   458
wenzelm@6550
   459
wenzelm@5819
   460
(* read terms *)
wenzelm@5819
   461
wenzelm@10554
   462
local
wenzelm@10554
   463
skalberg@15531
   464
fun append_env e1 e2 x = (case e2 x of NONE => e1 x | some => some);
wenzelm@14720
   465
wenzelm@16031
   466
fun gen_read' read app pattern schematic
wenzelm@14720
   467
    ctxt internal more_types more_sorts more_used s =
ballarin@14174
   468
  let
wenzelm@19897
   469
    val types = append_env (Variable.def_type ctxt pattern) more_types;
wenzelm@19897
   470
    val sorts = append_env (Variable.def_sort ctxt) more_sorts;
wenzelm@20163
   471
    val used = fold Name.declare more_used (Variable.names_of ctxt);
ballarin@14174
   472
  in
wenzelm@18857
   473
    (read (pp ctxt) (syn_of ctxt) ctxt (types, sorts, used) s
wenzelm@18678
   474
      handle TERM (msg, _) => error msg)
wenzelm@14720
   475
    |> app (intern_skolem ctxt internal)
wenzelm@19371
   476
    |> app (certify_consts ctxt)
wenzelm@19001
   477
    |> app (if pattern then I else expand_binds ctxt schematic)
wenzelm@18678
   478
    |> app (if pattern then prepare_dummies else reject_dummies)
wenzelm@14720
   479
  end;
wenzelm@14720
   480
wenzelm@16031
   481
fun gen_read read app pattern schematic ctxt =
wenzelm@16031
   482
  gen_read' read app pattern schematic ctxt (K false) (K NONE) (K NONE) [];
wenzelm@14720
   483
wenzelm@10554
   484
in
wenzelm@10554
   485
wenzelm@16031
   486
val read_termTs           = gen_read' (read_def_termTs false) (apfst o map) false false;
wenzelm@16031
   487
val read_termTs_schematic = gen_read' (read_def_termTs false) (apfst o map) false true;
wenzelm@8096
   488
wenzelm@14720
   489
fun read_term_pats T ctxt =
wenzelm@16031
   490
  #1 o gen_read (read_def_termTs false) (apfst o map) true false ctxt o map (rpair T);
wenzelm@8096
   491
val read_prop_pats = read_term_pats propT;
wenzelm@8096
   492
wenzelm@18672
   493
fun read_term_legacy ctxt =
wenzelm@16458
   494
  gen_read' (read_term_thy true) I false false ctxt (K true) (K NONE) (K NONE) [];
wenzelm@14720
   495
wenzelm@19143
   496
val read_term            = gen_read (read_term_thy true) I false false;
wenzelm@19143
   497
val read_prop            = gen_read (read_prop_thy true) I false false;
wenzelm@19143
   498
val read_prop_schematic  = gen_read (read_prop_thy true) I false true;
wenzelm@19143
   499
val read_terms           = gen_read (read_terms_thy true) map false false;
wenzelm@19143
   500
fun read_props schematic = gen_read (read_props_thy true) map false schematic;
wenzelm@5819
   501
wenzelm@10554
   502
end;
wenzelm@10554
   503
wenzelm@5819
   504
wenzelm@5819
   505
(* certify terms *)
wenzelm@5819
   506
wenzelm@10554
   507
local
wenzelm@10554
   508
wenzelm@18971
   509
fun gen_cert prop pattern schematic ctxt t = t
wenzelm@19371
   510
  |> certify_consts ctxt
wenzelm@19001
   511
  |> (if pattern then I else expand_binds ctxt schematic)
wenzelm@19371
   512
  |> (fn t' => #1 (Sign.certify' false prop (pp ctxt) (consts_of ctxt) (theory_of ctxt) t')
wenzelm@18678
   513
    handle TYPE (msg, _, _) => error msg
wenzelm@18678
   514
      | TERM (msg, _) => error msg);
wenzelm@16501
   515
wenzelm@10554
   516
in
wenzelm@8096
   517
wenzelm@18971
   518
val cert_term = gen_cert false false false;
wenzelm@18971
   519
val cert_prop = gen_cert true false false;
wenzelm@18971
   520
val cert_props = map oo gen_cert true false;
wenzelm@10554
   521
wenzelm@18971
   522
fun cert_term_pats _ = map o gen_cert false true false;
wenzelm@18971
   523
val cert_prop_pats = map o gen_cert true true false;
wenzelm@10554
   524
wenzelm@10554
   525
end;
wenzelm@5819
   526
wenzelm@5819
   527
wenzelm@18770
   528
(* inferred types of parameters *)
wenzelm@18770
   529
wenzelm@18770
   530
fun infer_type ctxt x =
wenzelm@18770
   531
  (case try (fn () =>
wenzelm@19897
   532
      Sign.infer_types (pp ctxt) (theory_of ctxt) (consts_of ctxt) (Variable.def_type ctxt false)
wenzelm@20163
   533
        (Variable.def_sort ctxt) (Variable.names_of ctxt) true
wenzelm@19897
   534
        ([Free (x, dummyT)], TypeInfer.logicT)) () of
wenzelm@18770
   535
    SOME (Free (_, T), _) => T
wenzelm@18770
   536
  | _ => error ("Failed to infer type of fixed variable " ^ quote x));
wenzelm@18770
   537
wenzelm@18770
   538
fun inferred_param x ctxt =
wenzelm@18619
   539
  let val T = infer_type ctxt x
wenzelm@20163
   540
  in ((x, T), ctxt |> Variable.declare_term (Free (x, T))) end;
wenzelm@18619
   541
wenzelm@18770
   542
fun inferred_fixes ctxt =
wenzelm@20086
   543
  fold_map inferred_param (rev (map #2 (Variable.fixes_of ctxt))) ctxt;
wenzelm@5819
   544
wenzelm@5819
   545
wenzelm@15703
   546
(* type and constant names *)
wenzelm@15703
   547
wenzelm@15703
   548
fun read_tyname ctxt c =
wenzelm@20163
   549
  if Syntax.is_tid c then
wenzelm@19897
   550
    TFree (c, the_default (Sign.defaultS (theory_of ctxt)) (Variable.def_sort ctxt (c, ~1)))
wenzelm@16458
   551
  else Sign.read_tyname (theory_of ctxt) c;
wenzelm@15703
   552
wenzelm@15703
   553
fun read_const ctxt c =
wenzelm@15703
   554
  (case lookup_skolem ctxt c of
wenzelm@15703
   555
    SOME c' => Free (c', dummyT)
wenzelm@18971
   556
  | NONE => Consts.read_const (consts_of ctxt) c);
wenzelm@15703
   557
wenzelm@15703
   558
wenzelm@9553
   559
wenzelm@9553
   560
(** export theorems **)
wenzelm@8616
   561
wenzelm@20310
   562
fun common_export is_goal inner outer =
wenzelm@20310
   563
  map (Assumption.export is_goal inner outer) #>
wenzelm@20310
   564
  Variable.export inner outer;
wenzelm@8616
   565
wenzelm@20310
   566
val goal_export = common_export true;
wenzelm@20310
   567
val export = common_export false;
wenzelm@12704
   568
wenzelm@19847
   569
fun export_standard inner outer =
wenzelm@19916
   570
  export inner outer #> map Drule.local_standard;
wenzelm@7925
   571
wenzelm@20631
   572
fun standard ctxt = export_standard ctxt ctxt;
wenzelm@20631
   573
wenzelm@5819
   574
wenzelm@15758
   575
wenzelm@5819
   576
(** bindings **)
wenzelm@5819
   577
wenzelm@8096
   578
(* simult_matches *)
wenzelm@8096
   579
wenzelm@19867
   580
fun simult_matches ctxt (t, pats) =
wenzelm@19867
   581
  (case Seq.pull (Unify.matchers (theory_of ctxt) (map (rpair t) pats)) of
wenzelm@19867
   582
    NONE => error "Pattern match failed!"
wenzelm@19867
   583
  | SOME (env, _) => map (apsnd snd) (Envir.alist_of env));
wenzelm@8096
   584
wenzelm@8096
   585
wenzelm@8096
   586
(* add_binds(_i) *)
wenzelm@5819
   587
wenzelm@7925
   588
local
wenzelm@7925
   589
wenzelm@16031
   590
fun gen_bind prep (xi as (x, _), raw_t) ctxt =
wenzelm@19897
   591
  ctxt |> Variable.add_binds [(xi, Option.map (prep ctxt) raw_t)];
wenzelm@5819
   592
wenzelm@10810
   593
in
wenzelm@10810
   594
wenzelm@20330
   595
fun drop_schematic (b as (xi, SOME t)) = if Term.exists_subterm is_Var t then (xi, NONE) else b
wenzelm@10554
   596
  | drop_schematic b = b;
wenzelm@10554
   597
wenzelm@16031
   598
val add_binds = fold (gen_bind read_term);
wenzelm@16031
   599
val add_binds_i = fold (gen_bind cert_term);
wenzelm@8616
   600
wenzelm@16458
   601
fun auto_bind f ts ctxt = ctxt |> add_binds_i (map drop_schematic (f (theory_of ctxt) ts));
wenzelm@12147
   602
val auto_bind_goal = auto_bind AutoBind.goal;
wenzelm@12147
   603
val auto_bind_facts = auto_bind AutoBind.facts;
wenzelm@7925
   604
wenzelm@7925
   605
end;
wenzelm@5819
   606
wenzelm@5819
   607
wenzelm@8096
   608
(* match_bind(_i) *)
wenzelm@5819
   609
wenzelm@8096
   610
local
wenzelm@8096
   611
wenzelm@17860
   612
fun prep_bind prep_pats (raw_pats, t) ctxt =
wenzelm@5819
   613
  let
wenzelm@19897
   614
    val ctxt' = Variable.declare_term t ctxt;
wenzelm@19585
   615
    val pats = prep_pats (Term.fastype_of t) ctxt' raw_pats;
wenzelm@19585
   616
    val binds = simult_matches ctxt' (t, pats);
wenzelm@17860
   617
  in (binds, ctxt') end;
wenzelm@7670
   618
wenzelm@10465
   619
fun gen_binds prep_terms prep_pats gen raw_binds ctxt =
wenzelm@8616
   620
  let
wenzelm@10465
   621
    val ts = prep_terms ctxt (map snd raw_binds);
wenzelm@17860
   622
    val (binds, ctxt') =
wenzelm@19482
   623
      apfst flat (fold_map (prep_bind prep_pats) (map fst raw_binds ~~ ts) ctxt);
wenzelm@8616
   624
    val binds' =
wenzelm@19916
   625
      if gen then map #1 binds ~~ Variable.exportT_terms ctxt' ctxt (map #2 binds)
wenzelm@8616
   626
      else binds;
skalberg@15531
   627
    val binds'' = map (apsnd SOME) binds';
wenzelm@18310
   628
    val ctxt'' =
wenzelm@19897
   629
      tap (Variable.warn_extra_tfrees ctxt)
wenzelm@18310
   630
       (if gen then
wenzelm@19897
   631
          ctxt (*sic!*) |> fold Variable.declare_term (map #2 binds') |> add_binds_i binds''
wenzelm@18310
   632
        else ctxt' |> add_binds_i binds'');
wenzelm@18310
   633
  in (ts, ctxt'') end;
wenzelm@8096
   634
wenzelm@8096
   635
in
wenzelm@5935
   636
wenzelm@10465
   637
val match_bind = gen_binds read_terms read_term_pats;
wenzelm@10465
   638
val match_bind_i = gen_binds (map o cert_term) cert_term_pats;
wenzelm@8096
   639
wenzelm@8096
   640
end;
wenzelm@5935
   641
wenzelm@5935
   642
wenzelm@10465
   643
(* propositions with patterns *)
wenzelm@5935
   644
wenzelm@10465
   645
local
wenzelm@8096
   646
wenzelm@10554
   647
fun prep_propp schematic prep_props prep_pats (context, args) =
wenzelm@10465
   648
  let
wenzelm@19585
   649
    fun prep (_, raw_pats) (ctxt, prop :: props) =
wenzelm@19897
   650
          let val ctxt' = Variable.declare_term prop ctxt
wenzelm@19585
   651
          in ((prop, prep_pats ctxt' raw_pats), (ctxt', props)) end
wenzelm@17860
   652
      | prep _ _ = sys_error "prep_propp";
wenzelm@17860
   653
    val (propp, (context', _)) = (fold_map o fold_map) prep args
wenzelm@19482
   654
      (context, prep_props schematic context (maps (map fst) args));
wenzelm@10465
   655
  in (context', propp) end;
wenzelm@5935
   656
wenzelm@10465
   657
fun gen_bind_propp prepp (ctxt, raw_args) =
wenzelm@8096
   658
  let
wenzelm@10465
   659
    val (ctxt', args) = prepp (ctxt, raw_args);
wenzelm@19585
   660
    val binds = flat (flat (map (map (simult_matches ctxt')) args));
wenzelm@10465
   661
    val propss = map (map #1) args;
wenzelm@8616
   662
wenzelm@10554
   663
    (*generalize result: context evaluated now, binds added later*)
wenzelm@19916
   664
    val gen = Variable.exportT_terms ctxt' ctxt;
skalberg@15531
   665
    fun gen_binds c = c |> add_binds_i (map #1 binds ~~ map SOME (gen (map #2 binds)));
skalberg@15531
   666
  in (ctxt' |> add_binds_i (map (apsnd SOME) binds), (propss, gen_binds)) end;
wenzelm@8096
   667
wenzelm@10465
   668
in
wenzelm@10465
   669
wenzelm@11925
   670
val read_propp = prep_propp false read_props read_prop_pats;
wenzelm@11925
   671
val cert_propp = prep_propp false cert_props cert_prop_pats;
wenzelm@10554
   672
val read_propp_schematic = prep_propp true read_props read_prop_pats;
wenzelm@10554
   673
val cert_propp_schematic = prep_propp true cert_props cert_prop_pats;
wenzelm@10554
   674
wenzelm@11925
   675
val bind_propp = gen_bind_propp read_propp;
wenzelm@11925
   676
val bind_propp_i = gen_bind_propp cert_propp;
wenzelm@11925
   677
val bind_propp_schematic = gen_bind_propp read_propp_schematic;
wenzelm@10554
   678
val bind_propp_schematic_i = gen_bind_propp cert_propp_schematic;
wenzelm@6789
   679
wenzelm@10465
   680
end;
wenzelm@10465
   681
wenzelm@6789
   682
wenzelm@5819
   683
wenzelm@5819
   684
(** theorems **)
wenzelm@5819
   685
wenzelm@18042
   686
(* fact_tac *)
wenzelm@18042
   687
wenzelm@18122
   688
fun comp_incr_tac [] _ st = no_tac st
wenzelm@18122
   689
  | comp_incr_tac (th :: ths) i st =
wenzelm@18122
   690
      (Goal.compose_hhf_tac (Drule.incr_indexes st th) i APPEND comp_incr_tac ths i) st;
wenzelm@18042
   691
wenzelm@18122
   692
fun fact_tac facts = Tactic.norm_hhf_tac THEN' comp_incr_tac facts;
wenzelm@18122
   693
wenzelm@18122
   694
fun some_fact_tac ctxt = SUBGOAL (fn (goal, i) =>
wenzelm@18042
   695
  let
wenzelm@19001
   696
    val index = fact_index_of ctxt;
wenzelm@18042
   697
    val facts = FactIndex.could_unify index (Term.strip_all_body goal);
wenzelm@18042
   698
  in fact_tac facts i end);
wenzelm@18042
   699
wenzelm@18042
   700
wenzelm@6091
   701
(* get_thm(s) *)
wenzelm@5819
   702
wenzelm@18042
   703
fun retrieve_thms _ pick ctxt (Fact s) =
wenzelm@16501
   704
      let
wenzelm@20049
   705
        val th = Goal.prove ctxt [] [] (read_prop ctxt s) (K (ALLGOALS (some_fact_tac ctxt)))
wenzelm@18678
   706
          handle ERROR msg => cat_error msg "Failed to retrieve literal fact.";
wenzelm@18042
   707
      in pick "" [th] end
wenzelm@18042
   708
  | retrieve_thms from_thy pick ctxt xthmref =
wenzelm@18042
   709
      let
wenzelm@18042
   710
        val thy = theory_of ctxt;
wenzelm@19001
   711
        val (space, tab) = #1 (thms_of ctxt);
wenzelm@16501
   712
        val thmref = PureThy.map_name_of_thmref (NameSpace.intern space) xthmref;
wenzelm@16501
   713
        val name = PureThy.name_of_thmref thmref;
wenzelm@16501
   714
      in
wenzelm@17412
   715
        (case Symtab.lookup tab name of
wenzelm@16540
   716
          SOME ths => map (Thm.transfer thy) (PureThy.select_thm thmref ths)
wenzelm@16540
   717
        | NONE => from_thy thy xthmref) |> pick name
wenzelm@18042
   718
      end;
wenzelm@5819
   719
wenzelm@9566
   720
val get_thm = retrieve_thms PureThy.get_thms PureThy.single_thm;
wenzelm@9566
   721
val get_thm_closure = retrieve_thms PureThy.get_thms_closure PureThy.single_thm;
wenzelm@9566
   722
val get_thms = retrieve_thms PureThy.get_thms (K I);
wenzelm@9566
   723
val get_thms_closure = retrieve_thms PureThy.get_thms_closure (K I);
wenzelm@5819
   724
wenzelm@5819
   725
wenzelm@16031
   726
(* valid_thms *)
wenzelm@16031
   727
wenzelm@16031
   728
fun valid_thms ctxt (name, ths) =
wenzelm@18678
   729
  (case try (fn () => get_thms ctxt (Name name)) () of
wenzelm@16031
   730
    NONE => false
wenzelm@16147
   731
  | SOME ths' => Thm.eq_thms (ths, ths'));
wenzelm@16031
   732
wenzelm@16031
   733
wenzelm@16031
   734
(* lthms_containing *)
wenzelm@16031
   735
wenzelm@16031
   736
fun lthms_containing ctxt spec =
wenzelm@16031
   737
  FactIndex.find (fact_index_of ctxt) spec
wenzelm@18043
   738
  |> map ((not o valid_thms ctxt) ? apfst (fn name =>
wenzelm@18042
   739
    NameSpace.hidden (if name = "" then "unnamed" else name)));
wenzelm@16031
   740
wenzelm@16031
   741
wenzelm@13425
   742
(* name space operations *)
wenzelm@12309
   743
wenzelm@19062
   744
val no_base_names   = map_naming NameSpace.no_base_names;
wenzelm@16147
   745
val qualified_names = map_naming NameSpace.qualified_names;
wenzelm@19062
   746
val sticky_prefix   = map_naming o NameSpace.sticky_prefix;
wenzelm@19062
   747
val restore_naming  = map_naming o K o naming_of;
wenzelm@12309
   748
wenzelm@19001
   749
fun hide_thms fully names = map_thms (fn ((space, tab), index) =>
wenzelm@19001
   750
  ((fold (NameSpace.hide fully) names space, tab), index));
wenzelm@13425
   751
wenzelm@12309
   752
wenzelm@17360
   753
(* put_thms *)
wenzelm@5819
   754
wenzelm@19079
   755
fun put_thms _ ("", NONE) ctxt = ctxt
wenzelm@19143
   756
  | put_thms do_index ("", SOME ths) ctxt = ctxt |> map_thms (fn (facts, index) =>
wenzelm@18672
   757
      let
wenzelm@20163
   758
        val index' = FactIndex.add_local do_index ("", ths) index;
wenzelm@19001
   759
      in (facts, index') end)
wenzelm@19079
   760
  | put_thms _ (bname, NONE) ctxt = ctxt |> map_thms (fn ((space, tab), index) =>
wenzelm@18672
   761
      let
wenzelm@19387
   762
        val name = full_name ctxt bname;
wenzelm@18672
   763
        val tab' = Symtab.delete_safe name tab;
wenzelm@19001
   764
      in ((space, tab'), index) end)
wenzelm@19079
   765
  | put_thms do_index (bname, SOME ths) ctxt = ctxt |> map_thms (fn ((space, tab), index) =>
wenzelm@18672
   766
      let
wenzelm@19387
   767
        val name = full_name ctxt bname;
wenzelm@19001
   768
        val space' = NameSpace.declare (naming_of ctxt) name space;
wenzelm@18672
   769
        val tab' = Symtab.update (name, ths) tab;
wenzelm@20163
   770
        val index' = FactIndex.add_local do_index (name, ths) index;
wenzelm@19001
   771
      in ((space', tab'), index') end);
wenzelm@5819
   772
wenzelm@19079
   773
fun put_thms_internal thms ctxt =
wenzelm@19079
   774
  ctxt |> map_naming (K local_naming) |> put_thms false thms |> restore_naming ctxt;
wenzelm@19079
   775
wenzelm@7606
   776
wenzelm@14564
   777
(* note_thmss *)
wenzelm@5819
   778
wenzelm@12711
   779
local
wenzelm@16147
   780
wenzelm@17860
   781
fun gen_note_thmss get = fold_map (fn ((name, more_attrs), ths_attrs) => fn ctxt =>
wenzelm@5819
   782
  let
wenzelm@17360
   783
    fun app (th, attrs) (ct, ths) =
wenzelm@18728
   784
      let val (ct', th') = foldl_map (Thm.proof_attributes (attrs @ more_attrs)) (ct, get ctxt th)
wenzelm@12711
   785
      in (ct', th' :: ths) end;
wenzelm@17360
   786
    val (ctxt', rev_thms) = fold app ths_attrs (ctxt, []);
wenzelm@19482
   787
    val thms = flat (rev rev_thms);
wenzelm@19079
   788
  in ((name, thms), ctxt' |> put_thms true (name, SOME thms)) end);
wenzelm@12711
   789
wenzelm@12711
   790
in
wenzelm@12711
   791
wenzelm@16147
   792
val note_thmss = gen_note_thmss get_thms;
wenzelm@16147
   793
val note_thmss_i = gen_note_thmss (K I);
ballarin@15696
   794
ballarin@15696
   795
val note_thmss_accesses = gen_note_thmss get_thms;
ballarin@15696
   796
val note_thmss_accesses_i = gen_note_thmss (K I);
wenzelm@12711
   797
wenzelm@12711
   798
end;
wenzelm@9196
   799
wenzelm@5819
   800
wenzelm@5819
   801
wenzelm@18672
   802
(** parameters **)
wenzelm@17360
   803
wenzelm@8096
   804
(* variables *)
wenzelm@8096
   805
wenzelm@19897
   806
fun declare_var (x, opt_T, mx) ctxt =
wenzelm@19897
   807
  let val T = (case opt_T of SOME T => T | NONE => TypeInfer.mixfixT mx)
wenzelm@20163
   808
  in ((x, T, mx), ctxt |> Variable.declare_constraints (Free (x, T))) end;
wenzelm@19897
   809
wenzelm@10381
   810
local
wenzelm@10381
   811
wenzelm@18672
   812
fun prep_vars prep_typ internal legacy =
wenzelm@18672
   813
  fold_map (fn (raw_x, raw_T, raw_mx) => fn ctxt =>
wenzelm@18672
   814
    let
wenzelm@19371
   815
      val (x, mx) = Syntax.const_mixfix raw_x raw_mx;
wenzelm@18672
   816
      val _ =
wenzelm@18678
   817
        if not legacy andalso not (Syntax.is_identifier (no_skolem internal x)) then
wenzelm@18678
   818
          error ("Illegal variable name: " ^ quote x)
wenzelm@18672
   819
        else ();
wenzelm@12504
   820
wenzelm@18672
   821
      fun cond_tvars T =
wenzelm@18672
   822
        if internal then T
wenzelm@18678
   823
        else Type.no_tvars T handle TYPE (msg, _, _) => error msg;
wenzelm@18672
   824
      val opt_T = Option.map (cond_tvars o prep_typ ctxt) raw_T;
wenzelm@18672
   825
      val var = (x, opt_T, mx);
wenzelm@19001
   826
    in (var, ctxt |> declare_var var |> #2) end);
wenzelm@8096
   827
wenzelm@10381
   828
in
wenzelm@10381
   829
wenzelm@18672
   830
val read_vars        = prep_vars read_typ false false;
wenzelm@18672
   831
val cert_vars        = prep_vars cert_typ true false;
wenzelm@18672
   832
val read_vars_legacy = prep_vars read_typ true true;
wenzelm@18672
   833
val cert_vars_legacy = prep_vars cert_typ true true;
wenzelm@8096
   834
wenzelm@10381
   835
end;
wenzelm@10381
   836
wenzelm@8096
   837
wenzelm@19681
   838
(* authentic constants *)
wenzelm@19663
   839
wenzelm@19663
   840
fun add_const_syntax prmode args ctxt =
wenzelm@19663
   841
  ctxt |> map_syntax
wenzelm@19663
   842
    (LocalSyntax.add_modesyntax (theory_of ctxt) prmode
wenzelm@19663
   843
      (map (pair false o Consts.syntax (consts_of ctxt)) args));
wenzelm@19663
   844
wenzelm@19681
   845
fun context_const_ast_tr context [Syntax.Variable c] =
wenzelm@19681
   846
      let
wenzelm@19681
   847
        val consts = Context.cases Sign.consts_of consts_of context;
wenzelm@19681
   848
        val c' = Consts.intern consts c;
wenzelm@19681
   849
        val _ = Consts.constraint consts c' handle TYPE (msg, _, _) => error msg;
wenzelm@19681
   850
      in Syntax.Constant (Syntax.constN ^ c') end
wenzelm@19681
   851
  | context_const_ast_tr _ asts = raise Syntax.AST ("const_ast_tr", asts);
wenzelm@19681
   852
wenzelm@19681
   853
val _ = Context.add_setup
wenzelm@19681
   854
 (Sign.add_syntax
wenzelm@19681
   855
   [("_context_const", "id => 'a", Delimfix "CONST _"),
wenzelm@19681
   856
    ("_context_const", "longid => 'a", Delimfix "CONST _")] #>
wenzelm@19681
   857
  Sign.add_advanced_trfuns ([("_context_const", context_const_ast_tr)], [], [], []));
wenzelm@19681
   858
wenzelm@19663
   859
wenzelm@19001
   860
(* abbreviations *)
wenzelm@19001
   861
wenzelm@19371
   862
val expand_abbrevs = map_consts o apsnd o Consts.expand_abbrevs;
wenzelm@19371
   863
wenzelm@19681
   864
fun add_abbrevs prmode = fold (fn ((raw_c, raw_mx), raw_t) => fn ctxt =>
wenzelm@19001
   865
  let
wenzelm@19663
   866
    val ([(c, _, mx)], _) = cert_vars [(raw_c, NONE, raw_mx)] ctxt;
wenzelm@19673
   867
    val c' = Syntax.constN ^ full_name ctxt c;
wenzelm@20008
   868
    val t0 = cert_term (ctxt |> expand_abbrevs false) raw_t;
wenzelm@20008
   869
    val [t] = Variable.exportT_terms (Variable.declare_term t0 ctxt) ctxt [t0];
wenzelm@19019
   870
    val T = Term.fastype_of t;
wenzelm@19001
   871
    val _ =
wenzelm@19897
   872
      if null (Variable.hidden_polymorphism t T) then ()
wenzelm@19001
   873
      else error ("Extra type variables on rhs of abbreviation: " ^ quote c);
wenzelm@19001
   874
  in
wenzelm@19001
   875
    ctxt
wenzelm@19897
   876
    |> Variable.declare_term t
wenzelm@19673
   877
    |> map_consts (apsnd
wenzelm@19681
   878
      (Consts.abbreviate (pp ctxt) (tsig_of ctxt) (naming_of ctxt) (#1 prmode) ((c, t), true)))
wenzelm@19663
   879
    |> map_syntax (LocalSyntax.add_modesyntax (theory_of ctxt) prmode [(false, (c', T, mx))])
wenzelm@19001
   880
  end);
wenzelm@19001
   881
wenzelm@19001
   882
wenzelm@18672
   883
(* fixes *)
wenzelm@5819
   884
wenzelm@8096
   885
local
wenzelm@8096
   886
wenzelm@19001
   887
fun prep_mixfix (x, T, mx) =
wenzelm@19019
   888
  if mx <> NoSyn andalso mx <> Structure andalso
wenzelm@20086
   889
      (can Name.dest_internal x orelse can Name.dest_skolem x) then
wenzelm@19001
   890
    error ("Illegal mixfix syntax for internal/skolem constant " ^ quote x)
wenzelm@19001
   891
  else (true, (x, T, mx));
wenzelm@19001
   892
wenzelm@18844
   893
fun gen_fixes prep raw_vars ctxt =
wenzelm@8096
   894
  let
wenzelm@18672
   895
    val (vars, ctxt') = prep raw_vars ctxt;
wenzelm@19897
   896
    val (xs', ctxt'') = Variable.add_fixes (map #1 vars) ctxt';
wenzelm@8096
   897
  in
wenzelm@19897
   898
    ctxt''
wenzelm@19001
   899
    |> fold_map declare_var (map2 (fn x' => fn (_, T, mx) => (x', T, mx)) xs' vars)
wenzelm@19897
   900
    |-> (map_syntax o LocalSyntax.add_syntax (theory_of ctxt) o map prep_mixfix)
wenzelm@18672
   901
    |> pair xs'
wenzelm@8096
   902
  end;
wenzelm@5819
   903
wenzelm@8096
   904
in
wenzelm@7679
   905
wenzelm@18844
   906
val add_fixes = gen_fixes read_vars;
wenzelm@18844
   907
val add_fixes_i = gen_fixes cert_vars;
wenzelm@18844
   908
val add_fixes_legacy = gen_fixes cert_vars_legacy;
wenzelm@8096
   909
wenzelm@8096
   910
end;
wenzelm@5819
   911
wenzelm@18672
   912
wenzelm@18672
   913
(* fixes vs. frees *)
wenzelm@12016
   914
wenzelm@18672
   915
fun auto_fixes (arg as (ctxt, (propss, x))) =
wenzelm@19897
   916
  if Variable.is_body ctxt then arg
wenzelm@20244
   917
  else ((fold o fold) Variable.fix_frees propss ctxt, (propss, x));
wenzelm@18672
   918
wenzelm@18672
   919
fun bind_fixes xs ctxt =
wenzelm@9291
   920
  let
wenzelm@18672
   921
    val (_, ctxt') = ctxt |> add_fixes_i (map (fn x => (x, NONE, NoSyn)) xs);
wenzelm@9291
   922
    fun bind (t as Free (x, T)) =
wenzelm@18340
   923
          if member (op =) xs x then
skalberg@15531
   924
            (case lookup_skolem ctxt' x of SOME x' => Free (x', T) | NONE => t)
wenzelm@9291
   925
          else t
wenzelm@9291
   926
      | bind (t $ u) = bind t $ bind u
wenzelm@9291
   927
      | bind (Abs (x, T, t)) = Abs (x, T, bind t)
wenzelm@9291
   928
      | bind a = a;
wenzelm@18672
   929
  in (bind, ctxt') end;
wenzelm@18672
   930
wenzelm@9291
   931
wenzelm@9291
   932
wenzelm@18672
   933
(** assumptions **)
wenzelm@18187
   934
wenzelm@20209
   935
local
wenzelm@20209
   936
wenzelm@20209
   937
fun gen_assms prepp exp args ctxt =
wenzelm@20209
   938
  let
wenzelm@20234
   939
    val cert = Thm.cterm_of (theory_of ctxt);
wenzelm@20209
   940
    val (propss, ctxt1) = swap (prepp (ctxt, map snd args));
wenzelm@20234
   941
    val _ = Variable.warn_extra_tfrees ctxt ctxt1;
wenzelm@20234
   942
    val (premss, ctxt2) = fold_burrow (Assumption.add_assms exp o map cert) propss ctxt1;
wenzelm@20234
   943
  in
wenzelm@20234
   944
    ctxt2
wenzelm@20234
   945
    |> auto_bind_facts (flat propss)
wenzelm@20234
   946
    |> put_thms_internal (AutoBind.premsN, SOME (Assumption.prems_of ctxt2))
wenzelm@20234
   947
    |> note_thmss_i (map fst args ~~ map (map (fn th => ([th], []))) premss)
wenzelm@20234
   948
  end;
wenzelm@20209
   949
wenzelm@20209
   950
in
wenzelm@20209
   951
wenzelm@20209
   952
val add_assms = gen_assms (apsnd #1 o bind_propp);
wenzelm@20209
   953
val add_assms_i = gen_assms (apsnd #1 o bind_propp_i);
wenzelm@20209
   954
wenzelm@20209
   955
end;
wenzelm@20209
   956
wenzelm@20209
   957
wenzelm@5819
   958
wenzelm@8373
   959
(** cases **)
wenzelm@8373
   960
wenzelm@16147
   961
local
wenzelm@16147
   962
wenzelm@16668
   963
fun rem_case name = remove (fn (x: string, (y, _)) => x = y) name;
wenzelm@16147
   964
wenzelm@18476
   965
fun add_case _ ("", _) cases = cases
wenzelm@18476
   966
  | add_case _ (name, NONE) cases = rem_case name cases
wenzelm@18476
   967
  | add_case is_proper (name, SOME c) cases = (name, (c, is_proper)) :: rem_case name cases;
wenzelm@16147
   968
wenzelm@18678
   969
fun prep_case name fxs c =
wenzelm@18609
   970
  let
wenzelm@18609
   971
    fun replace (opt_x :: xs) ((y, T) :: ys) = (the_default y opt_x, T) :: replace xs ys
wenzelm@18609
   972
      | replace [] ys = ys
wenzelm@18678
   973
      | replace (_ :: _) [] = error ("Too many parameters for case " ^ quote name);
wenzelm@18609
   974
    val RuleCases.Case {fixes, assumes, binds, cases} = c;
wenzelm@18609
   975
    val fixes' = replace fxs fixes;
wenzelm@18609
   976
    val binds' = map drop_schematic binds;
wenzelm@18609
   977
  in
wenzelm@18609
   978
    if null (fold (Term.add_tvarsT o snd) fixes []) andalso
wenzelm@18609
   979
      null (fold (fold Term.add_vars o snd) assumes []) then
wenzelm@18609
   980
        RuleCases.Case {fixes = fixes', assumes = assumes, binds = binds', cases = cases}
wenzelm@18678
   981
    else error ("Illegal schematic variable(s) in case " ^ quote name)
wenzelm@18609
   982
  end;
wenzelm@18609
   983
wenzelm@18672
   984
fun fix (x, T) ctxt =
wenzelm@18672
   985
  let
wenzelm@18672
   986
    val (bind, ctxt') = bind_fixes [x] ctxt;
wenzelm@18672
   987
    val t = bind (Free (x, T));
wenzelm@20163
   988
  in (t, ctxt' |> Variable.declare_constraints t) end;
wenzelm@18672
   989
wenzelm@16147
   990
in
wenzelm@16147
   991
wenzelm@18672
   992
fun add_cases is_proper = map_cases o fold (add_case is_proper);
wenzelm@18609
   993
wenzelm@18609
   994
fun case_result c ctxt =
wenzelm@18609
   995
  let
wenzelm@18609
   996
    val RuleCases.Case {fixes, ...} = c;
wenzelm@18672
   997
    val (ts, ctxt') = ctxt |> fold_map fix fixes;
wenzelm@18672
   998
    val RuleCases.Case {assumes, binds, cases, ...} = RuleCases.apply ts c;
wenzelm@18609
   999
  in
wenzelm@18609
  1000
    ctxt'
wenzelm@18699
  1001
    |> add_binds_i (map drop_schematic binds)
wenzelm@18609
  1002
    |> add_cases true (map (apsnd SOME) cases)
wenzelm@18609
  1003
    |> pair (assumes, (binds, cases))
wenzelm@18609
  1004
  end;
wenzelm@18609
  1005
wenzelm@18609
  1006
val apply_case = apfst fst oo case_result;
wenzelm@18609
  1007
wenzelm@16540
  1008
fun get_case ctxt name xs =
wenzelm@17184
  1009
  (case AList.lookup (op =) (cases_of ctxt) name of
wenzelm@18678
  1010
    NONE => error ("Unknown case: " ^ quote name)
wenzelm@18678
  1011
  | SOME (c, _) => prep_case name xs c);
wenzelm@8373
  1012
wenzelm@16147
  1013
end;
wenzelm@8373
  1014
wenzelm@8373
  1015
wenzelm@8373
  1016
wenzelm@10810
  1017
(** print context information **)
wenzelm@10810
  1018
wenzelm@20310
  1019
val debug = ref false;
wenzelm@20310
  1020
wenzelm@10810
  1021
val verbose = ref false;
wenzelm@10810
  1022
fun verb f x = if ! verbose then f (x ()) else [];
wenzelm@10810
  1023
wenzelm@10810
  1024
fun setmp_verbose f x = Library.setmp verbose true f x;
wenzelm@10810
  1025
wenzelm@10810
  1026
wenzelm@12072
  1027
(* local syntax *)
wenzelm@12072
  1028
wenzelm@12093
  1029
val print_syntax = Syntax.print_syntax o syn_of;
wenzelm@12072
  1030
wenzelm@12072
  1031
wenzelm@18971
  1032
(* local consts *)
wenzelm@18971
  1033
wenzelm@18971
  1034
fun pretty_consts ctxt =
wenzelm@18971
  1035
  let
wenzelm@19033
  1036
    val ((_, globals), (space, consts)) =
wenzelm@19033
  1037
      pairself (#constants o Consts.dest) (#consts (rep_context ctxt));
wenzelm@18971
  1038
    fun local_abbrev (_, (_, NONE)) = I
wenzelm@18971
  1039
      | local_abbrev (c, (T, SOME t)) =
wenzelm@18971
  1040
          if Symtab.defined globals c then I else cons (c, Logic.mk_equals (Const (c, T), t));
wenzelm@18971
  1041
    val abbrevs = NameSpace.extern_table (space, Symtab.make (Symtab.fold local_abbrev consts []));
wenzelm@18971
  1042
  in
wenzelm@18971
  1043
    if null abbrevs andalso not (! verbose) then []
wenzelm@19310
  1044
    else [Pretty.big_list "abbreviations:" (map (pretty_term_no_abbrevs ctxt o #2) abbrevs)]
wenzelm@18971
  1045
  end;
wenzelm@18971
  1046
wenzelm@18971
  1047
wenzelm@10810
  1048
(* term bindings *)
wenzelm@10810
  1049
wenzelm@16540
  1050
fun pretty_binds ctxt =
wenzelm@10810
  1051
  let
wenzelm@19897
  1052
    val binds = Variable.binds_of ctxt;
wenzelm@19310
  1053
    fun prt_bind (xi, (T, t)) = pretty_term_no_abbrevs ctxt (Logic.mk_equals (Var (xi, T), t));
wenzelm@10810
  1054
  in
wenzelm@15758
  1055
    if Vartab.is_empty binds andalso not (! verbose) then []
wenzelm@15758
  1056
    else [Pretty.big_list "term bindings:" (map prt_bind (Vartab.dest binds))]
wenzelm@10810
  1057
  end;
wenzelm@10810
  1058
wenzelm@10810
  1059
val print_binds = Pretty.writeln o Pretty.chunks o pretty_binds;
wenzelm@10810
  1060
wenzelm@10810
  1061
wenzelm@10810
  1062
(* local theorems *)
wenzelm@10810
  1063
wenzelm@16540
  1064
fun pretty_lthms ctxt =
wenzelm@20012
  1065
  let
wenzelm@20012
  1066
    val props = FactIndex.props (fact_index_of ctxt);
wenzelm@20012
  1067
    val facts =
wenzelm@20012
  1068
      (if null props then I else cons ("unnamed", props))
wenzelm@20012
  1069
      (NameSpace.extern_table (#1 (thms_of ctxt)));
wenzelm@20012
  1070
  in
wenzelm@20012
  1071
    if null facts andalso not (! verbose) then []
wenzelm@20012
  1072
    else [Pretty.big_list "facts:" (map (pretty_fact ctxt) facts)]
wenzelm@20012
  1073
  end;
wenzelm@10810
  1074
wenzelm@12057
  1075
val print_lthms = Pretty.writeln o Pretty.chunks o pretty_lthms;
wenzelm@10810
  1076
wenzelm@10810
  1077
wenzelm@10810
  1078
(* local contexts *)
wenzelm@10810
  1079
wenzelm@16540
  1080
fun pretty_cases ctxt =
wenzelm@10810
  1081
  let
wenzelm@12057
  1082
    val prt_term = pretty_term ctxt;
wenzelm@12057
  1083
wenzelm@10810
  1084
    fun prt_let (xi, t) = Pretty.block
wenzelm@10818
  1085
      [Pretty.quote (prt_term (Var (xi, Term.fastype_of t))), Pretty.str " =", Pretty.brk 1,
wenzelm@10810
  1086
        Pretty.quote (prt_term t)];
wenzelm@10810
  1087
wenzelm@13425
  1088
    fun prt_asm (a, ts) = Pretty.block (Pretty.breaks
wenzelm@13425
  1089
      ((if a = "" then [] else [Pretty.str (a ^ ":")]) @ map (Pretty.quote o prt_term) ts));
wenzelm@13425
  1090
wenzelm@10810
  1091
    fun prt_sect _ _ _ [] = []
wenzelm@10810
  1092
      | prt_sect s sep prt xs = [Pretty.block (Pretty.breaks (Pretty.str s ::
wenzelm@19482
  1093
            flat (Library.separate sep (map (Library.single o prt) xs))))];
wenzelm@10810
  1094
wenzelm@18609
  1095
    fun prt_case (name, (fixes, (asms, (lets, cs)))) = Pretty.block (Pretty.fbreaks
wenzelm@10810
  1096
      (Pretty.str (name ^ ":") ::
wenzelm@11915
  1097
        prt_sect "fix" [] (Pretty.str o fst) fixes @
wenzelm@10810
  1098
        prt_sect "let" [Pretty.str "and"] prt_let
wenzelm@19482
  1099
          (map_filter (fn (xi, SOME t) => SOME (xi, t) | _ => NONE) lets) @
wenzelm@13425
  1100
        (if forall (null o #2) asms then []
wenzelm@18609
  1101
          else prt_sect "assume" [Pretty.str "and"] prt_asm asms) @
wenzelm@18609
  1102
        prt_sect "subcases:" [] (Pretty.str o fst) cs));
wenzelm@16540
  1103
wenzelm@18476
  1104
    fun add_case (_, (_, false)) = I
wenzelm@18609
  1105
      | add_case (name, (c as RuleCases.Case {fixes, ...}, true)) =
wenzelm@18609
  1106
          cons (name, (fixes, #1 (case_result c ctxt)));
wenzelm@18476
  1107
    val cases = fold add_case (cases_of ctxt) [];
wenzelm@10810
  1108
  in
wenzelm@10810
  1109
    if null cases andalso not (! verbose) then []
wenzelm@18476
  1110
    else [Pretty.big_list "cases:" (map prt_case cases)]
wenzelm@10810
  1111
  end;
wenzelm@10810
  1112
wenzelm@10810
  1113
val print_cases = Pretty.writeln o Pretty.chunks o pretty_cases;
wenzelm@10810
  1114
wenzelm@10810
  1115
wenzelm@12057
  1116
(* core context *)
wenzelm@10810
  1117
wenzelm@20367
  1118
val prems_limit = ref ~1;
wenzelm@10810
  1119
wenzelm@18672
  1120
fun pretty_ctxt ctxt =
wenzelm@20310
  1121
  if ! prems_limit < 0 andalso not (! debug) then []
wenzelm@20310
  1122
  else
wenzelm@20310
  1123
    let
wenzelm@20310
  1124
      val prt_term = pretty_term ctxt;
wenzelm@12057
  1125
wenzelm@20310
  1126
      (*structures*)
wenzelm@20310
  1127
      val structs = LocalSyntax.structs_of (syntax_of ctxt);
wenzelm@20310
  1128
      val prt_structs = if null structs then []
wenzelm@20310
  1129
        else [Pretty.block (Pretty.str "structures:" :: Pretty.brk 1 ::
wenzelm@20310
  1130
          Pretty.commas (map Pretty.str structs))];
wenzelm@12093
  1131
wenzelm@20310
  1132
      (*fixes*)
wenzelm@20310
  1133
      fun prt_fix (x, x') =
wenzelm@20310
  1134
        if x = x' then Pretty.str x
wenzelm@20310
  1135
        else Pretty.block [Pretty.str x, Pretty.str " =", Pretty.brk 1, prt_term (Syntax.free x')];
wenzelm@20310
  1136
      val fixes =
wenzelm@20310
  1137
        rev (filter_out ((can Name.dest_internal orf member (op =) structs) o #1)
wenzelm@20310
  1138
          (Variable.fixes_of ctxt));
wenzelm@20310
  1139
      val prt_fixes = if null fixes then []
wenzelm@20310
  1140
        else [Pretty.block (Pretty.str "fixed variables:" :: Pretty.brk 1 ::
wenzelm@20310
  1141
          Pretty.commas (map prt_fix fixes))];
wenzelm@12057
  1142
wenzelm@20310
  1143
      (*prems*)
wenzelm@20310
  1144
      val prems = Assumption.prems_of ctxt;
wenzelm@20310
  1145
      val len = length prems;
wenzelm@20367
  1146
      val suppressed = len - ! prems_limit;
wenzelm@20310
  1147
      val prt_prems = if null prems then []
wenzelm@20367
  1148
        else [Pretty.big_list "prems:" ((if suppressed <= 0 then [] else [Pretty.str "..."]) @
wenzelm@20367
  1149
          map (pretty_thm ctxt) (Library.drop (suppressed, prems)))];
wenzelm@20310
  1150
    in prt_structs @ prt_fixes @ prt_prems end;
wenzelm@10810
  1151
wenzelm@10810
  1152
wenzelm@10810
  1153
(* main context *)
wenzelm@10810
  1154
wenzelm@16540
  1155
fun pretty_context ctxt =
wenzelm@10810
  1156
  let
wenzelm@12057
  1157
    val prt_term = pretty_term ctxt;
wenzelm@12057
  1158
    val prt_typ = pretty_typ ctxt;
wenzelm@12057
  1159
    val prt_sort = pretty_sort ctxt;
wenzelm@10810
  1160
wenzelm@10810
  1161
    (*theory*)
wenzelm@12057
  1162
    val pretty_thy = Pretty.block
wenzelm@17384
  1163
      [Pretty.str "theory:", Pretty.brk 1, Context.pretty_thy (theory_of ctxt)];
wenzelm@10810
  1164
wenzelm@10810
  1165
    (*defaults*)
wenzelm@10810
  1166
    fun prt_atom prt prtT (x, X) = Pretty.block
wenzelm@10810
  1167
      [prt x, Pretty.str " ::", Pretty.brk 1, prtT X];
wenzelm@10810
  1168
wenzelm@10810
  1169
    fun prt_var (x, ~1) = prt_term (Syntax.free x)
wenzelm@10810
  1170
      | prt_var xi = prt_term (Syntax.var xi);
wenzelm@10810
  1171
wenzelm@10810
  1172
    fun prt_varT (x, ~1) = prt_typ (TFree (x, []))
wenzelm@10810
  1173
      | prt_varT xi = prt_typ (TVar (xi, []));
wenzelm@10810
  1174
wenzelm@10810
  1175
    val prt_defT = prt_atom prt_var prt_typ;
wenzelm@10810
  1176
    val prt_defS = prt_atom prt_varT prt_sort;
wenzelm@16540
  1177
wenzelm@20163
  1178
    val (types, sorts) = Variable.constraints_of ctxt;
wenzelm@10810
  1179
  in
wenzelm@18609
  1180
    verb single (K pretty_thy) @
wenzelm@18672
  1181
    pretty_ctxt ctxt @
wenzelm@18971
  1182
    verb pretty_consts (K ctxt) @
wenzelm@10810
  1183
    verb pretty_binds (K ctxt) @
wenzelm@12057
  1184
    verb pretty_lthms (K ctxt) @
wenzelm@10810
  1185
    verb pretty_cases (K ctxt) @
wenzelm@18609
  1186
    verb single (fn () => Pretty.big_list "type constraints:" (map prt_defT (Vartab.dest types))) @
wenzelm@20163
  1187
    verb single (fn () => Pretty.big_list "default sorts:" (map prt_defS (Vartab.dest sorts)))
wenzelm@10810
  1188
  end;
wenzelm@10810
  1189
wenzelm@5819
  1190
end;